- Separate the Chex cereal into two large bowls, with three cups of cereal in each bowl. 
- Crush 8 of the Oreo cookies with a food processor, or by placing them in a ziplock bag and hammering them with a mallet or rolling pin, till you have a fine crumb. 
- Put half of the Oreo cookie crumbs into one ziplock bag, put the other half into another bag. 
- Chop up the rest of your Oreos, and set them aside. 
- Put 1/4 cup of powdered sugar into each of the ziplock bags.  
- Put the chocolate chips into a medium microwave safe bowl. Microwave for 30 seconds, then in 15 second increments stirring after each until melted and smooth. 
- Pour the melted chocolate over one of the bowls of cereal and stir to coat the cereal evenly.  
- Pour the cereal into one of the ziplock bags and shake to coat the cereal evenly with the powdered sugar Oreo crumb mixture.  
- Pour cereal out onto half of a baking pan lined with parchment paper.  
- Put the white chips into a medium microwave safe bowl. Microwave for 30 seconds, then in 15 second increments stirring after each until melted and smooth. 
- Pour the melted white chocolate over one of the bowls of cereal and stir to coat the cereal evenly.  
- Pour the coated cereal into one of the ziplock bags and shake to coat the cereal evenly with the powdered sugar Oreo crumb mixture.  
- Pour cereal out onto the other half of the baking pan lined with parchment paper.  
- Let cereal sit for 10 minutes to allow chocolate to set.  
- Add muddy buddies to a bowl and stir together with remaining chopped Oreos and enjoy.